Feedback: Group Questions Need For Missile Defense System

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It could mean billions of new dollars spent on Fort Drum - a defense system to protect the East Coast from missiles that might be launched by Iran.

But to one group of scientists, where it might be built misses the point.

"The question really isn't whether Fort Drum is a good site or a bad site. It's actually whether a new missle defense site is a good idea at all," said Dr. Laura Grego of the Union of Concerned Scientists.

The Union of Concerned Scientists says a current interceptor site in Alaska protects the East Coast just as well or better than a new one would.

And anyway, it says the interceptor missiles often miss.

"One would guess the priority would be getting the technology to work before expanding it to new sites," said Grego.